Background: Asymptomatic biofilm-producing Staphylococcus aureus carriage play a pivotal role as a reservoir pathogen and increase the transmission rate in hospital as well as in healthy community. Biofilm- producing S. aureus which is regulated by the the ica AD gene reduce the antimicrobial ability in eliminating the pathogen. Objective: The aim of this study was to detect the icaAD gene of biofilm-producing Staphylococcus aureus carriage isolates obtained from healthcare workers and healthy Community in Banyumas, Indonesia.Methods: This descriptive observational study enrolled 60 healthcare workers and 60 healthy communities in Banyumas district. Antibiotic susceptibility test was using disc diffusion according to Clinical laboratory Standard Institute (CLSI) 2019. Biofilm-producing ability identified by using microtiter plate biofilm assay and the positivity of icaAD gene was performed by using PCR method.Results: The results showed that one of 60 healthcare workers (0,017%) showed MRSA, four of 60 healthcare workers (0,07%) were MSSA and 2 samples from community (0,03%) were MSSA. Total of 7 samples underwent biofilm examination, one sample was moderate biofilm, two samples were weak biofilm, and four samples were no biofilm. It was known that three biofilm-producing S.aureus were positive ica A/D gene.Conclusion: The ica A/D gene was found positive in both biofilm-producing MRSA and MSSA strain from both healthcare workers group and the healthy communities group. The presence of icaAD genes in both strains shows the potential for antibiotic resistance in these strains regulated by different mechanisms.
Background: Methicillin-Resistant Staphylococcus aureus (MRSA) has become a major pathogene and its incidence continues to increase in various countries. The resistance to methicillin is caused by the mecA gene that encodes the expression of Penicillin Binding Protein 2a (PBP2a) so it has a low affinity for beta-lactam antibiotics. One of the factors that can increase the incidence of MRSA is inappropriate antibiotics use. Objective: This study is to identify presence of the mecA gene in MRSA and to compare histories of inappropriate antibiotic uses of healthcare workers and communities in Banyumas. Methods: This was a cross-sectional study conducting 120 samples from nasal swabs. Isolates of MRSA tested by bacteriological examinations and PCR of the mecA genes. Histories of antibiotic uses were assessed by using questionnaires and then analysed descriptively by using Fisher Exact test (SPPS, version 20). Result: One sample of S. aureus from the microbiology examination (0.83%) was an MRSA although there was no a mecA gene identified by using the PCR method. 66.1% of the healthcare workers and 88,3% of the communities used antibiotics inappropriately. The results showed that there was a statistically significant difference in the histories of irrational uses of antibiotics (p˂0.05). Conclusion:A number of the communities who used inappropriate antibiotics was higher than the health workers. Furthermore, one MRSA strain with a negative mecA gene was found in the health worker group. Latar Belakang: Methicillin-Resistant Staphylococcus aureus (MRSA) telah menjadi patogen utama dan angka insidensinya terus meningkat di berbagai negara. Resistensi terhadap methiciline disebabkan karena S.aureus memiliki gen mecA yang menyandi ekspresi dari Penicillin Binding Protein 2a (PBP2a) sehingga memiliki afinitas yang rendah terhadap antibiotik beta-laktam. Salah satu faktor yang dapat meningkatkan insidensi MRSA adalah penggunaan antibiotik tidak rasional Tujuan Penelitian: Tujuan penelitian ini adalah untuk mengetahui keberadaan gen mecA pada MRSA dan membandingkan riwayat penggunaan antibiotik pada tenaga kesehatan dan masyarakat di Banyumas.
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